By Jay F. Colinet, James P. Rider, Jeffrey M. Listak, John A. Organiscak, Anita L. Wolfe, Departmentof Health and human Services Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health
Compiled by means of the U.S. Dept of well-being and Human providers, CDC/NIOSH place of work of Mine defense and well-being study, this 2010 instruction manual used to be constructed to spot on hand engineering controls that may aid the lessen employee publicity to respirable coal and silica dirt. The controls mentioned during this instruction manual variety from long-utilized controls that experience built into criteria to more recent controls which are nonetheless being optimized. The cause used to be to spot the easiest practices which are on hand to manage respirable airborne dirt and dust degrees in underground and floor coal mining operations. This instruction manual offers basic details at the keep watch over applied sciences besides vast references.
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Compiled by way of the U. S. Dept of well-being and Human prone, CDC/NIOSH place of work of Mine security and overall healthiness study, this 2010 instruction manual was once built to spot to be had engineering controls that could aid the lessen employee publicity to respirable coal and silica dirt. The controls mentioned during this instruction manual diversity from long-utilized controls that experience constructed into criteria to more recent controls which are nonetheless being optimized.
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Extra info for Best Practices for Dust Control in Coal Mining
MSHA recommends that this face airflow be available and measured with the scrubber turned off. In practice, most operations are supplying quantities above the statutory minimum of 3,000 cfm in an effort to better control respirable dust and methane. • Filter panel thickness. The thickness of the filter panel controls the filter collection efficiency. Of the 10-, 20-, and 30-layered panels available, the 30-layer panel is the most efficient (>90%) in capturing respirable-sized dust [NIOSH 1997] (Figure 4-9).
S. Department of Health and Human 37 Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, DHHS (NIOSH) Publication No. 2003-147, IC 9465, pp. 39–55. Kost JA, Yingling JC, Mondics BJ . Guidebook for dust control in underground mining. Bituminous Coal Research Inc. S. Bureau of Mines contract J0199046. NTIS No. PB 83-109207. Laurito AW, Singh MM . Evaluation of air sprays and unique foam application methods for longwall dust control.
High-pressure sprays, installed at the rear corner of the shovel on the side opposite from the exhausting ventilation curtain, can sweep underboom dust toward the curtain. Extensive underground testing showed that the shovel sprays reduced coal dust exposures by 60% at the miner operator’s location while virtually eliminating exposures to respirable quartz dust [Schroeder et al. 1986]. The following practices have been shown to reduce dust exposures on continuous mining operations: • Dust rollback over the miner can be caused by high-pressure (>100 psi), wide-angle cone sprays [Jayaraman et al.